22-10-2012, 04:02 PM
Signaling Systems of Indian Railways
Signaling Systems.ppt (Size: 156.5 KB / Downloads: 100)
PRINCIPLES OF SIGNALING
The railway signaling is similar to highway traffic signaling. The highway traffic signaling was derived from the railways.
A signal is provided at the beginning of each block.
The yellow and red signals are provided on the same panel.
TYPES OF SIGNALING
TWO ASPECT LOWER QUADRANT SEMAPHORE SIGNALING
MODIFIED ASPECT LOWER QUADRANT SEMAPHORE SIGNALING
MULTIPLE ASPECT LOWER QUADRANT SEMAPHORE SIGNALING
TWO ASPECT COLOUR LIGHT SIGNALING
THREE ASPECT COLOUR LIGHT SIGNALING
FOUR ASPECT COLOUR LIGHT SIGNALING
CONTROLS AND MOVEMENT OF TRAINS
CENTRALLISED TRAFFIC CONTROL
OCCUPANCY PERMISSION SYSTEM
AUTOMATIC BLOCK SIGNALING SYSTEM
RESTRICTED LIMITS
CONCLUSION
This report consists the modernization of signaling systems of Indian Railways and gives a brief idea of how signals are used,different types of controls, SSI interlocking, double line block instrument, auxiliary warning systems etc.